PBDB Timescale

Obsolete Names for ICS Units

The interval definitions in this timescale are derived from the following sources:

W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view

There are 55 timescales which overlap this one. show

Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 92 collections

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Central Paratethys Stages	Silurian of the Baltic	Carboniferous Subepochs	Cambrian of Britain		Cretaceous-Cenozoic of New Zealand		Devonian of Eastern North America		Permian of the Pamirs	Permian-Jurassic of New Zealand
Quaternary	Holocene	Meghalayan									Wanganui	Haweran						0
		Northgrippian																0.0042
		Greenlandian																0.0082
	Pleistocene	Late Pleistocene																0.0117
		Chibanian																0.129
		Chibanian										Castlecliffian						0.34
		Calabrian										Castlecliffian						0.774
		Calabrian										Nukumaruan						1.63
		Gelasian										Nukumaruan						1.8
		Gelasian										Mangapanian						2.4
Neogene	Pliocene	Piacenzian	Tertiary †									Mangapanian						2.58
		Piacenzian										Waipipian						3
		Zanclean										Waipipian						3.6
		Zanclean										Opoitian						3.7
	Miocene	Messinian									Taranaki	Kapitean						5.333
		Messinian										Tongaporutuan						7.2
		Tortonian				Pannonian						Tongaporutuan						7.246
		Tortonian				Pannonian					Southland	Waiauan						11.04
		Serravallian				Sarmatian												11.63
						Badenian												12.8 *
						Badenian						Lillburnian						13.05
		Langhian										Lillburnian						13.82
												Clifdenian						15.1
											Pareora	Altonian						15.9
		Burdigalian										Altonian						15.98
		Burdigalian										Otaian						18.7
		Aquitanian										Otaian						20.44
		Aquitanian									Landon	Waitakian						21.7
Paleogene	Oligocene	Chattian										Waitakian						23.03
												Duntroonian						25.2
												Whaingaroan						27.3
		Rupelian																27.82
	Eocene	Priabonian																33.9
											Arnold	Runangan						34.6
												Kaiatan						36.7
		Bartonian										Kaiatan						37.71
		Bartonian										Bortonian						39.1
		Lutetian										Bortonian						41.2
											Dannevirke	Porangan						42.6
												Heretaungan						45.7
		Ypresian										Heretaungan						47.8
												Mangaorapan						48.9
												Waipawan						52
	Paleocene	Thanetian										Teurian						56
		Selandian																59.2
		Danian																61.6
Cretaceous	Late Cretaceous	Maastrichtian									Mata	Haumurian						66
		Campanian										Haumurian						72.1
		Santonian										Piripauan						83.6
		Santonian									Raukumara	Teratan						86.1
		Coniacian																86.3
		Turonian																89.8
												Mangaotanean						90.5
												Arowhanan						93.7
		Cenomanian										Arowhanan						93.9
											Clarence	Ngaterian						95.2
												Motuan						99.5
	Early Cretaceous	Albian										Motuan						100.5
												Urutawan						103.3
											Taitai	Korangan						108.4
		Aptian										Korangan						113
		Aptian																117.5
		Barremian																121.4
		Hauterivian																125.77
		Valanginian		132.6
		Berriasian		139.8
Jurassic	Late Jurassic	Tithonian			Oteke		Puaroan	145
		Kimmeridgian			Oteke		Puaroan	149.2
					Kawhia		Ohauan	150
							Heterian	154.5
		Oxfordian						154.8
	Middle Jurassic	Callovian						161.5
		Callovian					Temaikan	164.3
		Bathonian						165.3
		Bajocian						168.2
		Aalenian						170.9
	Early Jurassic	Toarcian						174.7
		Toarcian			Herangi		Ururoan	176
		Pliensbachian					Ururoan	184.2
		Pliensbachian					Aratauran	188.9
		Sinemurian						192.9
		Hettangian						199.5
Triassic	Late Triassic	Rhaetian			Balfour		Otapirian	201.4
		Norian					Warepan	208.5
							Otamitan	217
						Oretian	221
		Carnian				Oretian	227
		Carnian			Gore	Kaihikuan	227.5
	Middle Triassic	Ladinian				Kaihikuan	237
		Ladinian				Etalian	238
		Anisian				Etalian	242
		Anisian				Malakovian	246
	Early Triassic	Olenekian				Malakovian	247.2
		Olenekian				Nelsonian	249
		Induan				Nelsonian	251.2
		Induan			DUrville	Makarewan	251.5
Permian	Lopingian	Changhsingian				Makarewan	Dorashamian	251.902
		Changhsingian				Waiitian	Dorashamian	253.2
		Wuchiapingian				Waiitian	Longtanian †	Dzhulfian	254.14
		Wuchiapingian				Puruhauan	Longtanian †	Dzhulfian	254.2
	Guadalupian	Capitanian				Midian	Aparima	Flettian	259.51
		Wordian						Flettian	264.28
								Barettian	266
						Murgabian			266.2 *
		Roadian				Murgabian			266.9
	Cisuralian	Kungurian				Kubergandian			273.01
						Kubergandian		Mangapirian	276
						Bolorian			279.8
		Artinskian							283.5
								Telfordian	285
			Yakhtashian			286		Telfordian
			Yakhtashian					288.5
		Sakmarian	Sakmarian					290.1
		Asselian	Asselian					293.52
Carboniferous	Pennsylvanian	Gzhelian	Late Pennsylvanian						298.9
		Kasimovian	Late Pennsylvanian						303.7
		Moscovian	Middle Pennsylvanian						307
		Bashkirian	Early Pennsylvanian						315.2
	Mississippian	Serpukhovian	Late Mississippian						323.2
		Visean	Middle Mississippian						330.9
		Tournaisian	Early Mississippian						346.7
Devonian	Late Devonian	Famennian							Conewangan/Conneautan/Canadaway	Late Famennian	358.9
										Middle Famennian	365.3 *
										Early Famennian	368.5 *
		Frasnian							West Fallsian/Sonyean	Late Frasnian	372.2
										Middle Frasnian	375.4 *
										Early Frasnian	379.3 *
	Middle Devonian	Givetian							Geneseean/Taghanican/Tioughniogan	Cazenovian	Late Givetian	382.7
											Middle Givetian	383.7 *
											Early Givetian	385.9 *
		Eifelian		Southwoodian					Late Eifelian		387.7
		Eifelian		Southwoodian					Early Eifelian		390.3 *
	Early Devonian	Emsian		Sawkillian/Deer Parkian					Helderbergian	Late Emsian	393.3
		Emsian		Sawkillian/Deer Parkian						Early Emsian	398.3 *
		Pragian								Pragian	407.6
		Lochkovian								Late Lochkovian	410.8
										Middle Lochkovian	412.8 *
										Early Lochkovian	415.6 *
Silurian	Pridoli								Ohesaare			419.2
	Pridoli								Kaugetuma			421.7 *
	Ludlow	Ludfordian							Kuressaare			423
		Ludfordian							Paadla			423.4 *
		Gorstian							Paadla			425.6
	Wenlock	Homerian							Rootsikula			427.4
		Homerian							Jaagarahu			429.2 *
		Sheinwoodian							Jaagarahu			430.5
		Sheinwoodian							Jaani			431.8 *
	Llandovery	Telychian							Jaani			433.4
		Telychian							Adavere			434 *
		Aeronian							Adavere			438.5
		Aeronian							Raikkula			439.4 *
		Rhuddanian							Raikkula			440.8
		Rhuddanian							Juuru			441.4 *
Ordovician	Late Ordovician	Hirnantian										443.8
		Katian										445.2
		Sandbian										453
	Middle Ordovician	Darriwilian										458.4
	Middle Ordovician	Dapingian										467.3
	Early Ordovician	Floian										470
	Early Ordovician	Tremadocian										477.7
Cambrian	Furongian	Stage 10										Merioneth	Dolgellian/Trempealeauan	Franconian †/Dresbachian/Millardan	485.4
													Dolgellian/Trempealeauan		Sunwaptan	487.5
													Festiniogian			489.2 *
		Jiangshanian														489.5
					Steptoean										493 *
													Maentwrogian		493.1 *
		Paibian											Maentwrogian		494
	Miaolingian	Guzhangian			Series 3 †							St Davids		Marjumian	Albertian †	497
		Drumian												Marjumian		500.5
		Wuliuan												Stage 5 †		Topazan	504.5
		Wuliuan												Stage 5 †		Delamaran	506.5
	Series 2	Stage 4												Caerfai	Waucoban †	Delamaran	509
		Stage 4														Dyeran	511 *
		Stage 3														Dyeran	514
																Montezuman	514.8 *
						Begadean	519.9 *
	Terreneuvian	Stage 2					521
	Terreneuvian	Fortunian					529
																		538.8